Mold for concrete construction.



T. A. EDISON.

MOLD FOR CONCRETE CONSTRUCTION.

APPILIOATION FILED DEC. 29, 1908.

Patented Jan. 5,

'rnomns a unison, OF'LLEWELLYN PARK, weer. ensues, NEW JERSEY.

MOLD non concnn'rs consrnncrroiv.

Specificationof Letters Patent,

Application filed December 29, 1908. Serial No. 469,885.

To all 'w'hom'z't may concern Be' 'it known that I, THOMi-XSA. Emson, a citizen of the United States, and a resident ofLlewellyn Park, Vest Orange, Essex county, New Jersey, have made a certain new and useful Invention in Molds for Concrete-Construction, of which .the following is a description.

My invention relates to molds for concrete construction, and particularly to molds for the construction of a complete dwelling. of concrete, 'which may be poured at alsi'ngle operation as disclosed'in' my application Serial No. 448',293, 'filed August 13, 1908.,

The object of my invention is to construct molds for a complete dwelling made of concrete or Portland cement, said molds formed of cast iron sections, whereby those. sections which serve to formartistlc relief work on the concrete are provided with means by which the sections may be removed when the-cement is weak, and without injury to the cement due to the removal of the molds,

In the case of high relief parts of a concrete house or other construction employing such-delicate relief parts, the slight-' est side/motion given the mold on removal of the same will break off the relief parts. In many cases, a lateral movement as slight as two or three one-thousandths of an inch will suffice to injure the relief work. Hence, I provide a means to prevent any suchlateral movement when the sections are moved outwardly.

Attention is hereby called to the following drawings forming part of thisspecification, in wl-iich'the same reference numerals represent corresponding parts throughout,

and in which v Figure 1 represents a side elevation of a number of sections of mold secured to-- gether, several ofwhich sections are pro- .vided with surfaces forforming high relief work in :the co'ncrete; Fig. 2 represents a cross section on line2-2 of Fig. 1. Fig. Sis a detail view showing the concrete surface having high relief work formedby such a mold, and showing the effect of a lateralmovement of the mold in removing the same. -Fig. 4 is a detail vi'ew'showing a modification of the means for guidingthe removal of the molds.

' The mold sections 1, 1, having horizontal flanges 2, 2- are..secured'together as by bolts 3 passing through said-flangesandsccured by nuts. The mold SECtlOIIS'llkBWlSE have vertical flanges 4, 4:, the various sections in alinement being secured each to the one laterally in line therewith as by bolts 5 "passing through said flanges and securedby nuts. The mold sections may constitute the outer and inner surfaces for forming a wall or other portion of the. concrete construetion, in which" case the molds may be secured together and spaced apart the requisite distance'to form such a wall or construction by any suitable means, as for example, by means of the bolts 6 passing through bosses 7. on

the mold sections, said'bolts being secured by means of nuts 8' to the outer and inner mold sections, and being spaced apart as by spacing sleeves or members 9, which are preferably formed of concrete or other substance homogeneous with the material to be poured into the moldto formthe structure. \Vooden washers 10 may likewise be used.

w The section of the mold designed to form a relief part in the concrete is shown at 11.

The means which'are employed for guiding the removal ofone mold from anotheron taking down the mold in order that lateral movement of one mo'ld. relatively to the other may be prevented, is shown in Figs; 1 and 2 as the key 12, whichfitsw'ithin key ways as13 formed in the adjacent surfaces of the flanges of sections, one'of which is designed to be placed upon the other. It is obvious that in place of the separate key 12, the same may be formed integrally with the flange of one of the sections. as shown' at 14 in Fig. 4, this being adapted to co-act with a corresponding key way formed in the adjacent mold section, although the separate key as shown in the first embodiment of the invention is preferable. The effect of lateral movement of the mold in removing the same isillustrated in Fig 3, in.

i which the full lines represent the proper po- 'sition 'of an ornamental or relief part, and the dotted lines, a distorte'd'position produced by the lateral movement of one ofthe mold sections in re'niormg the same.

Having now described my invention, what I'cleim anddesire to secure by Letters Pat -ent-.of the United States is as follows:

1. In a moldfor concrete construction, the.

other sections, and means between each pair sections, the corresponding face of each section'const ituting a part of the mold surface,

' and means between each pair of adjacent sections for causing one section of the pair to restrict relative movement of the other section. of the pair to a movement ina direction substantially at right angles to the mold surface, substantially as' described.

3. In a mold for concrete construction, the combination of a plurality of superimosed sections, each section having a pair of horizontal flanges, and the corresponding face of each section constituting a part of curing said sections together, each pair of sous sections and means coacting the. mold surface, means for removably se-' superimposed adjacent sections being provided with registering notches in their upper and lower horizontal tlangesrespeetively, and a member snugly fitting each pair of registering notches for restricting relative movement between said sections to a movement in a direction substantially. at

right angles to the mold surface, substantially as described.

In a mold for concrete construction, the combination of a plurality of contigu- With the contiguous sections upon the outward removal of any section to prevent lateral movement thereof relative to the other sec tions during such outward removal, substantially as described. v y

This specification signed and witnessed this 22d day of December, 1908. v

I T-HOS. ALEDISON, Witnesses: f

Dyna SMITH,

ANNA'R. KLEH 

